Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
17006excellentexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
14004excellentexcellent11excellent
13004excellentexcellent11excellent
12004excellentexcellent11excellent
11005excellentexcellent11excellent
10004excellentexcellent11excellent
09006excellentexcellent11excellent
08008excellentexcellent11excellent
07007excellentexcellent11excellent
06005excellentexcellent11excellent
05003excellentexcellent11excellent
04008excellentexcellent21excellent
030021goodexcellent41excellent
020029goodexcellent51excellent
010032goodexcellent51excellent
000039lightly pollutedexcellent31excellent
230043lightly pollutedexcellent31excellent
220041lightly pollutedexcellent21excellent
210012excellentexcellent21excellent
200011excellentexcellent21excellent
190019goodexcellent21excellent
180011excellentexcellent21excellent